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Finding the Fourth Proportional to 358,759.62, 538,205.76 and 148,413.96

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Solution

The fourth proportional to 358,759.62, 538,205.76 and 148,413.96 is: 222,648.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,759.62 : 538,205.76 = 148,413.96 : x
  2. Step 2: Convert to fraction form
    358,759.62/538,205.76 = 148,413.96/x
  3. Step 3: Cross multiply
    358,759.62x = 538,205.76 × 148,413.96
  4. Step 4: Simplify right side
    358,759.62x = 79,877,248,136.41
  5. Step 5: Solve for x
    x = 79,877,248,136.41/358,759.62
  6. Step 6: Final answer
    x = 222,648.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.